Pervaporation dehydration of isopropanol using blend membranes of chitosan and hydroxypropyl cellulose

Pervaporation dehydration of isopropanol using homogeneous polyelectrolyte complex membranes of poly(diallyldimethylammonium chloride)/sodium carboxymethyl cellulose

“…It can be seen that there is a band at 2Â = 20 • for CMCNa, which is due to the semi-crystalline nature of CMCNa. This semi-crystalline nature of CMCNa is mainly ascribed to the intra-molecular and intermolecular hydrogen bond [33]. However, WXAD curves for four PECs all showed no obvious band at 2Â = 20 • .…”

Novel approach for the development of pervaporation membranes using sodium alginate and chitosan-wrapped multiwalled carbon nanotubes for the dehydration of isopropanol

“…It is noticed that the membranes made of CS-HPC-40 [38], CS/PTFE [40], CS/GPTMS (CSHM-5) [42], CS/NaY zeolite (40 wt%) [45], CS/HMDACS [46], CS/TiO 2 (40 mass%) [47] and composite membrane of SA and CS [49] exhibited higher flux compared to CS-wrapped MWCNTs incorporated SA membrane, but their selectivity was significantly lower (1.4 to 14.2 times) compared to membrane reported here. On the other hand, membranes made of CS-HPC-20 [38], CS/PVA-20/40 crosslinked with UFS [44], SA/De of both (60/40) and (50/50) exhibited higher selectivity, but their flux values are 1.46 to 2.99 times lower than that of CSwrapped MWCNTs incorporated SA membrane. Under this situation, the magnitude of PSI is the criteria to decide the overall PV performance of the membranes.…”

Study on immunosensor based on gold nanoparticles/chitosan and MnO2 nanoparticles composite membrane/Prussian blue modified gold electrode

“…Recently, nano-MnO 2 were synthesized and nano-sized MnO 2 showed greater advantages and newer characteristics than regular-sized particles, which have biocompatibility, electrocatalytic property and good solubility and dispersibility in water with special physical and chemical properties [14]. CS was chosen as the material to form the membrane due to its excellent film-forming and adhesion abilities, nontoxicity and biocompatibility [15]. To our knowledge, the enzyme sensors using nano-MnO 2 have been described [16][17][18].…”